Telephone and Data Systems, Inc., a telecommunications company, provides communications services in the United States. It operates through three segments: UScellular, Wireline, and Cable. The company offers wireless solutions to consumers and business and government customers, including a suite of connected Internet of things (IoT) solutions, and software applications for monitor and control, business automation/operations, communication, asset management, smart water solutions, and end-to-end IoT solutions; wireless priority services and quality priority and preemption options; smartphones and other handsets, tablets, wearables, mobile hotspots, routers, and IoT devices; and accessories, such as cases, screen protectors, chargers, and memory cards, as well as consumer electronics, including headphones, smart speakers, and home automation and business management solutions. It also provides replace and repair services; Trade-In program through which it buys customers' used equipment; internet connections and all-home WI-FI services; TDS TV+, an integrated cloud television platform that offers video content; local and long-distance telephone service, VoIP, and enhanced services; and broadband, IP-based services, and hosted voice and video collaboration services. It sells its products through retail sales, direct sales, third-party retailers, and independent agents, as well as through ecommerce and telesales. As of December 31, 2020, the company offers its services to customers 5 million wireless connections, and 1.2 million wireline and cable connections. The company was incorporated in 1968 and is headquartered in Chicago, Illinois.